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RS75-4 3" Reference Full-Range Driver 4 Ohm
Incorporating a low-distortion motor system with a copper ring, a copper cap, and an aluminum phase plug, the RS75-4 can outperform "boutique" drivers that cost several times the price.
SIRS754
Data sheet
- Impedance
- 4 Ohm
- Driver type
- Full-range
- Sensitivity
- 85.2 dB @ 2.83V/1m
- Frequency range
- 170 - 20000 Hz
- Resonance frequency (fs)
- 177 Hz
- DC resistance (Re)
- 3.1 ohms
- Mechanical Q (Qms)
- 5.76
- Electrical Q at Fs (Qes)
- 0.97
- Total Q factor (Qts)
- 0.83
- Speaker diameter
- 3"
- Power handling
- 30 W
- Voice coil inductance (L)
- 0.72 mH @ 1 kHz
- Effective mechanical mass incl air load (mms)
- 1.1g
- Effective piston radiating area (Sd)
- 12 cm²
- Force factor (BL)
- 2.01 Tm
- Equivalent volume of compliance (Vas)
- 0.14 liters
- Overall diameter
- 72 mm
- Mounting diameter
- 54 mm
Incorporating a low-distortion motor system with a copper ring, a copper cap, and an aluminum phase plug, the RS75-4 can outperform "boutique" drivers that cost several times the price.